This is interesting because I’m going through the same thing. I changed all spark plugs, coil packs, and injectors. I even replaced the valve cover. P0306 code went away but I still am dealing with p0300. Note: I am tuned for (e85). But I’m still using stock fuel pump. I have a aftermarket fuel pump but I have not installed it yet. Do you think that is the reason for random misfire?
Any update with your issue because I'm having the same problem. Tuned e85 stock fuel pump with up graded fuel lines and GTR injectors. Replaced sprak plugs and injection coils still getting the same misfire
My Q50 give me the same issue, I already changed all those things my question is my car is half tank of 89 just add the premium in it
im having this misfire…. i jus checked spark plugs and coils even replaced the spark plugs and 1 coil
This is interesting because I’m going through the same thing. I changed all spark plugs, coil packs, and injectors. I even replaced the valve cover. P0306 code went away but I still am dealing with p0300.
Note: I am tuned for (e85). But I’m still using stock fuel pump. I have a aftermarket fuel pump but I have not installed it yet. Do you think that is the reason for random misfire?
Try putting premium fuel...to see if it makes any difference
Any update with your issue because I'm having the same problem. Tuned e85 stock fuel pump with up graded fuel lines and GTR injectors. Replaced sprak plugs and injection coils still getting the same misfire
@@jaygoodie7890 ended being a faulty fuel injector
was it the injector?
That's not a Q50